Warning: Permanently added '10.128.0.106' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 53.393022][ T5] usb 1-1: new high-speed USB device number 2 using dummy_hcd [ 53.632365][ T5] usb 1-1: Using ep0 maxpacket: 8 [ 53.772662][ T5] usb 1-1: config 0 has an invalid descriptor of length 0, skipping remainder of the config [ 53.962419][ T5] usb 1-1: New USB device found, idVendor=1164, idProduct=0622, bcdDevice=f7.d7 [ 53.971651][ T5] usb 1-1: New USB device strings: Mfr=69, Product=191, SerialNumber=179 [ 53.980251][ T5] usb 1-1: Product: syz [ 53.984504][ T5] usb 1-1: Manufacturer: syz [ 53.989124][ T5] usb 1-1: SerialNumber: syz [ 53.999322][ T5] usb 1-1: config 0 descriptor?? executing program [ 54.285243][ T5] pvrusb2: Hardware description: Gotview USB 2.0 DVD 2 [ 54.323028][ T2389] pvrusb2: Invalid write control endpoint [ 54.325659][ T5] usb 1-1: USB disconnect, device number 2 [ 54.391919][ T2389] pvrusb2: Invalid write control endpoint [ 54.397915][ T2389] pvrusb2: ***WARNING*** Detected a wedged cx25840 chip; the device will not work. [ 54.407537][ T2389] pvrusb2: ***WARNING*** Try power cycling the pvrusb2 device. [ 54.415165][ T2389] pvrusb2: ***WARNING*** Disabling further access to the device to prevent other foul-ups. [ 54.425234][ T2389] pvrusb2: Device being rendered inoperable [ 54.431718][ T2389] cx25840 0-0044: Unable to detect h/w, assuming cx23887 [ 54.439123][ T2389] cx25840 0-0044: cx23887 A/V decoder found @ 0x88 (pvrusb2_a) [ 54.448757][ T2389] pvrusb2: Attached sub-driver cx25840 [ 54.461009][ T2389] pvrusb2: Attempted to execute control transfer when device not ok [ 54.469276][ T2389] pvrusb2: Attempted to execute control transfer when device not ok [ 54.477393][ T2389] pvrusb2: Attempted to execute control transfer when device not ok [ 54.485502][ T2389] pvrusb2: Attempted to execute control transfer when device not ok [ 54.493632][ T2389] pvrusb2: Module ID 4 (tuner) for device Gotview USB 2.0 DVD 2 failed to load. Possible missing sub-device kernel module or initialization failure within module. [ 54.529573][ T2389] TUNER: Unable to find symbol tda829x_probe() [ 54.545814][ T2389] DVB: Unable to find symbol tda9887_attach() [ 54.551952][ T2389] tuner: 0-0043: Tuner 4 found with type(s) Radio TV. [ 54.559988][ T2389] pvrusb2: Attached sub-driver tuner [ 54.566209][ T2389] pvrusb2: ***WARNING*** pvrusb2 driver initialization failed due to the failure of one or more sub-device kernel modules. [ 54.580456][ T2389] pvrusb2: You need to resolve the failing condition before this driver can function. There should be some earlier messages giving more information about the problem. [ 54.612790][ T2389] ------------[ cut here ]------------ [ 54.618332][ T2389] sysfs group 'power' not found for kobject '0-0044' [ 54.625240][ T2389] WARNING: CPU: 0 PID: 2389 at fs/sysfs/group.c:279 sysfs_remove_group+0x126/0x170 [ 54.634955][ T2389] Modules linked in: [ 54.638889][ T2389] CPU: 0 PID: 2389 Comm: pvrusb2-context Not tainted 5.12.0-rc6-syzkaller #0 [ 54.647742][ T2389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.657946][ T2389] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 54.663880][ T2389] Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 20 db 12 86 e8 3b 12 ec 03 <0f> 0b eb 98 e8 f1 89 d5 ff e9 01 ff ff ff 48 89 df e8 e4 89 d5 ff [ 54.683609][ T2389] RSP: 0018:ffffc900065d7b80 EFLAGS: 00010286 [ 54.689708][ T2389] RAX: 0000000000000000 RBX: ffffffff863d79c0 RCX: 0000000000000000 [ 54.697809][ T2389] RDX: ffff888109a5d1c0 RSI: ffffffff8129f803 RDI: fffff52000cbaf62 [ 54.705898][ T2389] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 54.713961][ T2389] R10: ffffffff814ab71b R11: 0000000000000000 R12: ffff88810e965020 [ 54.721969][ T2389] R13: ffffffff863d7f60 R14: 1ffff92000cbaf98 R15: dffffc0000000000 [ 54.730427][ T2389] FS: 0000000000000000(0000) GS:ffff8881f6a00000(0000) knlGS:0000000000000000 [ 54.739473][ T2389] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 54.746444][ T2389] CR2: 00007ffe652a44d7 CR3: 0000000007825000 CR4: 00000000001506f0 [ 54.754522][ T2389] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 54.762596][ T2389] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 54.770607][ T2389] Call Trace: [ 54.774110][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 54.779517][ T2389] dpm_sysfs_remove+0x97/0xb0 [ 54.784347][ T2389] device_del+0x20c/0xd40 [ 54.788757][ T2389] ? __device_links_queue_sync_state+0x3f0/0x3f0 [ 54.795269][ T2389] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 54.801309][ T2389] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 54.807193][ T2389] ? trace_hardirqs_on+0x5b/0x1a0 [ 54.812373][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 54.817770][ T2389] device_unregister+0x22/0xc0 [ 54.822615][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 54.828044][ T2389] __unregister_client+0x95/0xa0 [ 54.833080][ T2389] device_for_each_child+0xf9/0x170 [ 54.838311][ T2389] ? device_remove_class_symlinks+0x210/0x210 [ 54.844483][ T2389] ? __radix_tree_lookup+0x211/0x2a0 [ 54.849799][ T2389] i2c_del_adapter+0x37b/0x680 [ 54.854635][ T2389] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 54.860655][ T2389] pvr2_i2c_core_done+0x69/0xc0 [ 54.865647][ T2389] pvr2_hdw_destroy+0x179/0x3b0 [ 54.870529][ T2389] pvr2_context_destroy+0x84/0x230 [ 54.875720][ T2389] pvr2_context_thread_func+0x64b/0x850 [ 54.881319][ T2389] ? pvr2_context_destroy+0x230/0x230 [ 54.886791][ T2389] ? finish_wait+0x260/0x260 [ 54.891433][ T2389] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 54.897759][ T2389] ? __kthread_parkme+0x118/0x1d0 [ 54.902901][ T2389] ? pvr2_context_destroy+0x230/0x230 [ 54.908309][ T2389] kthread+0x38c/0x460 [ 54.912483][ T2389] ? _raw_spin_unlock_irq+0x1f/0x30 [ 54.917713][ T2389] ? __kthread_bind_mask+0xc0/0xc0 [ 54.922929][ T2389] ret_from_fork+0x1f/0x30 [ 54.927389][ T2389] Kernel panic - not syncing: panic_on_warn set ... [ 54.933976][ T2389] CPU: 0 PID: 2389 Comm: pvrusb2-context Not tainted 5.12.0-rc6-syzkaller #0 [ 54.942752][ T2389] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 54.952821][ T2389] Call Trace: [ 54.956116][ T2389] dump_stack+0x143/0x1db [ 54.960456][ T2389] panic+0x306/0x73d [ 54.964484][ T2389] ? __warn_printk+0xf3/0xf3 [ 54.969097][ T2389] ? __warn.cold+0x1a/0x44 [ 54.973527][ T2389] ? sysfs_remove_group+0x126/0x170 [ 54.978742][ T2389] __warn.cold+0x35/0x44 [ 54.983003][ T2389] ? irq_work_queue+0x44/0x50 [ 54.987695][ T2389] ? sysfs_remove_group+0x126/0x170 [ 54.992909][ T2389] report_bug+0x1bd/0x210 [ 54.997249][ T2389] handle_bug+0x3c/0x60 [ 55.001490][ T2389] exc_invalid_op+0x14/0x40 [ 55.006031][ T2389] asm_exc_invalid_op+0x12/0x20 [ 55.010898][ T2389] RIP: 0010:sysfs_remove_group+0x126/0x170 [ 55.016744][ T2389] Code: 48 89 d9 49 8b 14 24 48 b8 00 00 00 00 00 fc ff df 48 c1 e9 03 80 3c 01 00 75 37 48 8b 33 48 c7 c7 20 db 12 86 e8 3b 12 ec 03 <0f> 0b eb 98 e8 f1 89 d5 ff e9 01 ff ff ff 48 89 df e8 e4 89 d5 ff [ 55.036481][ T2389] RSP: 0018:ffffc900065d7b80 EFLAGS: 00010286 [ 55.042558][ T2389] RAX: 0000000000000000 RBX: ffffffff863d79c0 RCX: 0000000000000000 [ 55.052131][ T2389] RDX: ffff888109a5d1c0 RSI: ffffffff8129f803 RDI: fffff52000cbaf62 [ 55.060129][ T2389] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 [ 55.068107][ T2389] R10: ffffffff814ab71b R11: 0000000000000000 R12: ffff88810e965020 [ 55.076151][ T2389] R13: ffffffff863d7f60 R14: 1ffff92000cbaf98 R15: dffffc0000000000 [ 55.084157][ T2389] ? __irq_work_queue_local+0xbb/0xf0 [ 55.089542][ T2389] ? vprintk_func+0x93/0x140 [ 55.094150][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 55.099536][ T2389] dpm_sysfs_remove+0x97/0xb0 [ 55.104246][ T2389] device_del+0x20c/0xd40 [ 55.108612][ T2389] ? __device_links_queue_sync_state+0x3f0/0x3f0 [ 55.114958][ T2389] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 55.120950][ T2389] ? _raw_spin_unlock_irqrestore+0x42/0x50 [ 55.126781][ T2389] ? trace_hardirqs_on+0x5b/0x1a0 [ 55.131839][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 55.137245][ T2389] device_unregister+0x22/0xc0 [ 55.142025][ T2389] ? i2c_adapter_lock_bus+0x130/0x130 [ 55.147433][ T2389] __unregister_client+0x95/0xa0 [ 55.152382][ T2389] device_for_each_child+0xf9/0x170 [ 55.157615][ T2389] ? device_remove_class_symlinks+0x210/0x210 [ 55.163697][ T2389] ? __radix_tree_lookup+0x211/0x2a0 [ 55.169098][ T2389] i2c_del_adapter+0x37b/0x680 [ 55.173880][ T2389] ? lockdep_hardirqs_on_prepare+0x273/0x3e0 [ 55.179896][ T2389] pvr2_i2c_core_done+0x69/0xc0 [ 55.184760][ T2389] pvr2_hdw_destroy+0x179/0x3b0 [ 55.189657][ T2389] pvr2_context_destroy+0x84/0x230 [ 55.194806][ T2389] pvr2_context_thread_func+0x64b/0x850 [ 55.200565][ T2389] ? pvr2_context_destroy+0x230/0x230 [ 55.205971][ T2389] ? finish_wait+0x260/0x260 [ 55.210591][ T2389] ? __sanitizer_cov_trace_const_cmp1+0x22/0x80 [ 55.216842][ T2389] ? __kthread_parkme+0x118/0x1d0 [ 55.221893][ T2389] ? pvr2_context_destroy+0x230/0x230 [ 55.227277][ T2389] kthread+0x38c/0x460 [ 55.231356][ T2389] ? _raw_spin_unlock_irq+0x1f/0x30 [ 55.236671][ T2389] ? __kthread_bind_mask+0xc0/0xc0 [ 55.241793][ T2389] ret_from_fork+0x1f/0x30 [ 55.246903][ T2389] Kernel Offset: disabled [ 55.251309][ T2389] Rebooting in 86400 seconds..